|  | 4.1 | LAN Design Goals and Components
| 4.1.6 | How broadcast domains relate to segmentation
Segmentation is the process of splitting a single collision domain into two or more collision domains, as shown in Figure . Layer 2 (the data link layer) bridges or switches can be used to segment a logical bus topology and create separate collision domains, which results in more bandwidth being available to individual stations. Notice in Figure that the entire bus topology still represents a single broadcast domain because, although bridges and switches do not forward collisions, they forward broadcast packets. All broadcasts from any host in the same broadcast domain are visible to all other hosts in the same broadcast domain. Broadcasts must be visible to all hosts in the broadcast domain in order to establish connectivity. The scalability of the bandwidth domain depends on the total amount of traffic, and the scalability for a broadcast domain depends on the total broadcast of the traffic. It is important to remember that bridges and switches forward broadcast (FF-FF-FF-FF-FF) traffic, and that routers normally do not.
| Web Links
| Cisco Connection Online
| Cisco Documentation
| Cisco Hardware
| Cisco Software
| Cisco Internetworking
| Search Cisco